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Search forward and backward.

This commit is contained in:
Saumya Bhatnagar 2018-06-02 17:00:04 +05:30
parent ea53b4c5c1
commit 0de0c9cef1
2 changed files with 29 additions and 3 deletions
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editor
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editor.c
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@ -458,15 +458,41 @@ void editorSave() {
/*** find ***/
void editorFindCallback(char* query, int cur_key) {
static int last_match = -1; // last matching text y position
static int direction = 1; // 1 for forward annd -1 for backward
if (cur_key == '\r' || cur_key == '\x1b') {
last_match = -1;
direction = 1;
return;
} else if (cur_key == ARROW_DOWN || cur_key == ARROW_RIGHT) {
direction = 1;
} else if (cur_key == ARROW_UP || cur_key == ARROW_LEFT) {
direction = -1;
} else {
direction = 1;
last_match = -1;
}
if (last_match == -1) {
direction = 1;
}
int current = last_match;
for (int i = 0 ; i < E.numrows ; i++) {
editorrow* erow = &E.erow[i];
current += direction;
if (current == -1) {
current = E.numrows - 1;
} else if (current == E.numrows) {
current = 0;
}
editorrow* erow = &E.erow[current];
char *match = strstr(erow->render, query);
if (match) {
E.cursorY = i;
last_match = current;
E.cursorY = current;
E.cursorX = editorRowRenderCToCursorX(erow, match - erow->render);
/* so that we are scrolled to the very bottom of the file,
which will cause editorScroll() to scroll upwards at the next
@ -484,7 +510,7 @@ void editorFind() {
int saved_colOff = E.colOff;
int saved_rowOff = E.rowOff;
char *query = editorPrompt("Search: %s (ESC to cancel)", editorFindCallback);
char *query = editorPrompt("Search: %s (Use ESC/Arrows/Enter)", editorFindCallback);
if (query) {
free(query);